If must not commit blasphemy, by either misusing the names of God or His saints, or by uttering disrespectful words, inwardly or outwardly, against God.

We must not take false oaths; in fact, Jesus advises us: “do not swear at all.” (Matthew 5:34)

3) Keep holy the Sabbath

We must go to Mass every Sunday (or Saturday evening) and day of obligation unless we have a serious reason, such as sickness, storms, or impossibility; or have obtained the permission of our pastor.

On Sundays, we must refrain from work or activities that prevent it from being a day for worship, joy, works of mercy, rest and relaxation. However, family needs or important social service can legitimately excuse one from the Sunday rest.

4) Honor your parents

We must always love and honor our mothers and fathers, not only when we are young, but also when they have grown old and have need of our care.

5) You shall not kill

We must never commit murder by intentionally killing innocent human life, as in abortion, embryonic stem-cell research, standard in-vitro fertilization practices, spontaneous abortion from “the pill” and other contraceptives, active or passive euthanasia, suicide, or targeting civilians in wartime.

Jesus shows us that we must not hate, but love others: “I say to you, whoever is angry with his brother will be liable to judgment.… Love your enemies.” (Matthew 5:22, 5:44)

Not only must we refrain from unjustly taking what belongs to another, but from disordered desires to possess as well. As Jesus warns us: “Take care to guard against all greed.” (Luke 12:15)

Jesus teaches that we must care for the needy: “Amen, I say to you, what you did not do for one of these least ones, you did not do for me.” (Matthew 25:45)

8) You shall not bear false witness

We must not lie, by speaking or acting against the truth in order to lead someone into error, be it by perjury, slander, boasting, flattery, or the like. As Jesus says, “Let your ‘Yes’ mean ‘Yes,’ and your ‘No’ mean ‘No.’ Anything more is from the evil one.” (Matthew 5:37)